{"nhtsa_id":39270,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1995-11-01","date":"1995-02-01","document_id":"CAMP/91C50","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL","mfr_system":null,"summary":"UNKNOWN","document":null,"url":"https://open.wenmarpro.com/bulletins/39270","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"G SERIES","year_from":1991,"year_to":1991,"match":"exact","vehicle_ids":["1991_chevrolet_g-series"]},{"make":"GMC","model":"C SERIES(LIGHT)","year_from":1991,"year_to":1991,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"SAFARI","year_from":1991,"year_to":1991,"match":"exact","vehicle_ids":["1991_gmc_safari"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}